//
//  coss.m
//  wjd
//
//  Created by mac on 16-4-18.
//  Copyright (c) 2016年 xiaoxiangmu. All rights reserved.
//

#import "coss.h"

@implementation coss
-(NSString*)description
{
    return self.name;
}
-(void)square
{
    NSLog(@"正方形");
}
-(void)rectangle{
    NSLog(@"长方形");
}
-(void)parallelogram
{
    NSLog(@"平行四边形");
}
-(NSStringCompareOptions) compare:(coss*)sa{
    return [self.name compare:sa.name];

}
@end
